EN
ZHEN 352-6:2002
Hearing protectors. General requirements Part 6: Ear-muffs with electrical audio input
This standard requires all of the testing specified in EN 352-1 with the additional clause below tested on additional samples.
Sound output levels
The sound output levels of the device are measured using a miniature microphones placed into the ear canals of human test subjects. The electrical input level at which 82dB(A) is measured at the ear is reported.